/**
 * @license
 * Copyright 2017 Palantir Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import * as ts from "typescript";

import { RuleFailure } from "../rule/rule";

import { WalkContext } from "./walkContext";

export interface IWalker {
    getSourceFile(): ts.SourceFile;
    walk(sourceFile: ts.SourceFile): void;
    getFailures(): RuleFailure[];
}

export abstract class AbstractWalker<T = undefined> extends WalkContext<T> implements IWalker {
    public abstract walk(sourceFile: ts.SourceFile): void;

    public getSourceFile() {
        return this.sourceFile;
    }

    public getFailures() {
        return this.failures;
    }
}
